出力キャパシタ電圧平衡化ソフトスイッチング倍電圧正弦波整流器

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タイトル別名
  • Soft-Switched Voltage-Doubler Sinusoidal Rectifier with Balanced Output Capacitor Voltages

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A novel single-phase soft-switched voltage-doubler rectifier is presented. The resonant switch cell for this has a full-bridge DC-DC converter structure built of voltage-bidirectional two-quadrant switch and has a vital function to balance the output capacitor voltages. The switching transitions are mainly governed by a series resonance. The experimental prototype employing four insulated-gate bipolar transistors is implemented to investigate the pulse-width modulated operation. The experimental results confirm that the input current can be waveshaped sinusoidally with a near-unity power factor under the output voltage duplication.

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